<template>
  <div class="about">
    <!-- $attrs和$listeners 实现父传孙 -->
    <child-b v-bind="$attrs" v-on="$listeners"></child-b>
  </div>
</template>
<script>
import childB from "../components/childB.vue";
export default {
  components: {
    childB,
  },
};
</script>
